INVENTORS OF COMPUTER HARDWARE

INVENTORS OF COMPUTER HARDWARE:

(1) Key board — Herman Hollerith, first keypunch
device in 1930’s

(2) Transistor — John Bardeen, Walter Brattain &
Wiliam Shockley (1947 - 1948)

(3) RAM — An Wang and Jay Forrester (1951)

(4) Trackball — Tom Cranston and Fred Longstaff
(1952)

(5) Hard Disk — IBM , The IBM Model 350 Disk File
(1956 )

(6) Integrated Circuit— Jack Kilby & Robert Noyce
(1958)

(7) Computer Mouse — Douglas Engelbart (1964)

(8) Laser printer— Gary Stark weather at XEROX in
1969.

(9) Floppy Disk— Alan Shugart & IBM( 1970)
(10) Microprocessor — Faggin, Hoff & Mazor – Intel
4004



Important abbreviations related to internet :
FM –>Frequency Modulation
SIM –>Subscriber Identity Module
RIM –>Removable Identity Module
GSM –>Global System For Mobile
LAN –>Local Area Network
WAN –>Wide Area Network
RTF –>Rich Text Format
MAN –>Metropolitan Area Network
URL –>Uniform Resource Locator
ISP –>Inter Net Service Provide
@–>At The Rate Of
DVD –>Digital Versatile Disk
CD –>Compact Disk
EDGE –>Enhanced Data for GSM Evolution
GPRS –>General Packet Radio Service
FDM –>Frequency Division Multiplexing
SDR –>Software Defined Radio
ATM –>Asynchronous Transfer Mode
DCA –>Dynamic Channel Allocation
FCA –>Fixed Channel Allocation
AMPS –>Advance Mobile Phone System
IMTS –>Improved Mobile Telephone System
CDMA –>Code Division
MultipleAccess
MTSO –>Mobile Telephone Switching
Office
HTTP –>Hypertext Transfer Protocol
FIDI –>Fiber Distributed Data Interface
ISDN –>Integrated Services Digital
Network
PSTN –>Public Switched Telephone Network
CSMA –>Carrier Sense Multiple Access
RADAR –>Radio Detection AndRanging
SONET –>Synchronous Optical Fiber Network
DAMPS –>Digital Advanced Mobile
Phone System
WWW –>World Wide Web
IP –>Internet Protocol
TCP –>Transmission Control Protocol
HTML –>HyperText Markup Language
USB –>Universal Serial Bus
PAN ->Personal Area Network
TDM ->Time Division Multiplexing.